Auxiliary folding and unfolding device of unmanned aerial vehicle and fire fighting truck
By installing the auxiliary retracting and retrieval device of the drone on the fire truck, and using the drive components and detection modules to automatically drive the cable movement, the problem of the drone requiring additional power to pull the cable during takeoff is solved, reducing the failure rate and improving the service life.
Patent Information
- Application Number
- CN202510201482.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-24
- Publication Date
- 2025-05-27
AI Technical Summary
The drones loaded by existing fire trucks require additional power to pull the cable during takeoff, resulting in high power requirements and prone to failure.
An auxiliary retracting and retracting device for a drone is designed, including a tied cable reel and an auxiliary retracting and retracting mechanism. The auxiliary retracting and retracting mechanism is composed of a driving component and a detection module. The detection module detects the torque direction of the cable. The driving component automatically drives the cable movement according to the detection results to reduce the power burden of the drone.
Through auxiliary retrieval and release devices, the power demand for the drone to pull the cable during takeoff is reduced, the failure rate is reduced, and the service life of the drone is improved.
Smart Images
Figure CN120039723A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of fire fighting, and more particularly, to an auxiliary retracting device for an unmanned aerial vehicle and a fire truck. Background Art
[0002] With the development of the world economy, high-rise and super high-rise buildings in cities are increasing day by day. Once a fire breaks out in a building dozens or even hundreds of meters high, there will be fire fighting problems.
[0003] At present, there are some fire trucks on the market equipped with fire-fighting unmanned aerial vehicles, and the unmanned aerial vehicles need to be powered by connecting cables. However, in the prior art, especially during the take-off process of the preparation work of the unmanned aerial vehicle, the cable needs to be pulled by an additional power load of the unmanned aerial vehicle itself, which requires a high power requirement for the unmanned aerial vehicle and is prone to cause failures of the unmanned aerial vehicle. Summary of the Invention
[0004] The technical problem to be solved by the present application is to provide an auxiliary retracting device for an unmanned aerial vehicle and a fire truck, which can provide additional cable pay-out power during the take-off and operation of the unmanned aerial vehicle, so that the unmanned aerial vehicle does not need to provide additional power to pull the cable during take-off and operation, and can decompose part of the pay-out driving force for the unmanned aerial vehicle, thereby reducing the failure rate of the unmanned aerial vehicle.
[0005] To solve the above technical problems, the present application adopts the following technical solutions:
[0006] In a first aspect, the present application provides an auxiliary retracting device for an unmanned aerial vehicle, including: a tether cable reel for retracting and paying out a cable connected to the unmanned aerial vehicle; an auxiliary retracting mechanism including a driving component and a detection module, the driving component being used to drive the cable to move, and the detection module being used to detect the torque direction of the cable, and the detection module being communicatively connected to the driving component.
[0007] As an implementation manner, the driving component includes a first conveyor belt and a second conveyor belt, and the first conveyor belt and the second conveyor belt can clamp the cable to drive the cable to move.
[0008] As an implementation manner, the auxiliary retracting mechanism includes a bracket and a support member, the second conveyor belt is fixedly connected to the bracket, the first conveyor belt is connected to the support member, and the support member can move relative to the bracket to adjust the distance between the first conveyor belt and the second conveyor belt.
[0009] As an implementation manner, the support member is used to fit with the bracket, and the bracket is provided with a long hole.
[0010] As an implementation manner, the bracket and the tether cable reel are independent split structures.
[0011] As an implementation manner, the driving assembly further includes a driving member, which is connected to the bracket and is used to drive the second conveyor belt to move.
[0012] As an implementation manner, the auxiliary winding and unwinding mechanism further includes at least one set of pressing wheel groups, which are used to clamp the cable, and the pressing wheel groups are fixed on one side of the driving assembly.
[0013] As an implementation manner, there are at least two sets of pressing wheel groups, and the two sets of pressing wheel groups are not at the same height.
[0014] The auxiliary winding and unwinding device further includes a controller, which is fixed on the bracket and is used to communicate with the control module on the unmanned aerial vehicle, and can receive the signals of the take-off or landing of the unmanned aerial vehicle.
[0015] In a second aspect, the present application provides a fire truck, and the fire truck is equipped with the auxiliary winding and unwinding device of the unmanned aerial vehicle described in the first aspect.
[0016] The technical solution of the present application has the following beneficial effects:
[0017] The auxiliary winding and unwinding device includes a tethered cable reel, the tethered cable reel is connected with a cable, the cable is connected with the unmanned aerial vehicle and is used to supply power to the unmanned aerial vehicle, and the tethered cable reel can recycle and release the cable; it further includes an auxiliary winding and unwinding mechanism, and the auxiliary winding and unwinding mechanism includes a driving assembly and a detection module. The detection module can detect the torque direction of the cable. When the unmanned aerial vehicle takes off and pulls the cable, the detection module detects that the torque direction of the cable is the direction of paying out the cable. The detection module is communicatively connected with the driving assembly, and the driving assembly can receive the instruction of the torque direction and drive the cable to move in the direction of paying out the cable, so that the unmanned aerial vehicle does not need to provide additional pulling force to pull the cable, and takes part of the pulling force when paying out the cable for the unmanned aerial vehicle, thereby improving the service life of the unmanned aerial vehicle. Description of the Drawings
[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.
[0019] Figure 1 It is a schematic structural diagram of the auxiliary winding and unwinding device of the unmanned aerial vehicle provided by the embodiment of the present application;
[0020] Figure 2 It is a schematic structural diagram of the auxiliary winding and unwinding device of the unmanned aerial vehicle provided by the embodiment of the present application from different perspectives;
[0021] Figure 3 This is a schematic structural diagram of the fire truck provided by the embodiment of the present application.
[0022] Icons: 1 - Mooring cable reel; 11 - Support frame; 12 - Winch; 2 - UAV; 3 - Driving assembly; 31 - First conveyor belt; 32 - Second conveyor belt; 33 - Driving member; 34 - First roller shaft; 4 - Bracket; 41 - Long strip hole; 5 - Support member; 6 - Pressing wheel group; 7 - Guide member. Specific embodiments
[0023] Next, the technical solutions in the embodiments of the present application will be described with reference to the accompanying drawings in the embodiments of the present application.
[0024] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, in the description of the present application, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.
[0025] As Figure 1 and 3 shown, in the first aspect, the embodiment of the present application provides an auxiliary retracting and deploying device for a UAV, including a mooring cable reel 1. The mooring cable reel 1 is connected with a cable, and the cable is connected with the UAV 2 for supplying power to the UAV 2. The mooring cable reel 1 can recycle and release the cable; it further includes an auxiliary retracting and deploying mechanism. The auxiliary retracting and deploying mechanism includes a driving assembly 3 and a detection module. The detection module can detect the torque direction of the cable. When the UAV 2 takes off and pulls the cable, the detection module detects that the torque direction of the cable is the direction of cable release. The detection module is communicatively connected with the driving assembly 3, and the driving assembly 3 can receive the instruction of the torque direction and drive the cable to move in the direction of cable release, so that the UAV 2 does not need to provide additional pulling force to pull the cable, and undertakes a part of the pulling force during cable release for the UAV 2, thereby improving the service life of the UAV 2.
[0026] Optionally, the detection module includes a tension sensor for monitoring the tension and load of the cable.
[0027] Optionally, the detection module can be fixed on the bracket 4.
[0028] As Figure 1 shown, optionally, the mooring cable reel 1 includes a support frame 11 and a winch 12. The winch 12 is used to wind the cable, and the winch 12 can rotate relative to the support frame 11, and the support frame 11 is fixed on the fire truck.
[0029] Optionally, the tension sensor can be communicatively connected to the driving member 33. That is, when the tension sensor senses the torque direction of the cable, it can send a signal to the driving member 33, and the driving member 33 will start to operate and drive the second conveyor belt 32 to move. For example, when receiving the torque in the cable pay-off direction, the driving member 33 can rotate forward; when receiving the torque in the cable take-up direction, the driving member 33 can rotate backward.
[0030] Of course, the tension sensor and the driving member 33 can also be controlled by a general controller. The general controller receives and processes the corresponding signals, and drives the tension sensor and the driving member 33 to operate respectively.
[0031] As Figure 1 shown, as an implementation manner, the driving assembly 3 includes a first conveyor belt 31 and a second conveyor belt 32. The first conveyor belt 31 and the second conveyor belt 32 can clamp the cable to provide power for the cable to move.
[0032] As Figure 1 shown, optionally, the driving assembly 3 further includes a plurality of first rollers 34. The first rollers 34 are connected to the support member 5 to provide support for the first conveyor belt 31.
[0033] As Figure 1 shown, as an implementation manner, the auxiliary pay-off and take-up mechanism includes a bracket 4 and a support member 5. The second conveyor belt 32 is fixedly connected to the bracket 4, and the first conveyor belt 31 is connected to the support member 5. The support member 5 can move relative to the bracket 4 to adjust the distance between the first conveyor belt 31 and the second conveyor belt 32, so that the auxiliary pay-off and take-up mechanism can meet cables of different specifications and sizes, improve the adaptability of the product, and at the same time, can also increase the clamping force between the first conveyor belt 31 and the second conveyor belt 32, making the cable move more smoothly.
[0034] As Figure 2 shown, as an implementation manner, the support member 5 is used to fit with the bracket 4. The bracket 4 is provided with a long hole 41, so that before the drone 2 takes off, the relative position between the support member 5 and the second conveyor belt 32 can be fixed by passing a fastener through the long hole 41 and the support member 5. When it is necessary to adjust the distance between the support member 5 and the second conveyor belt 32, the fastener needs to be loosened.
[0035] Optionally, the support member 5 is a vertical sheet-like structure. The bracket 4 is provided with a notch, and the support member 5 can be embedded in the notch position. At the same time, it also provides stable support for the support member 5, and the support member 5 fits on one side of the bracket 4.
[0036] Optionally, as a possible implementation, the way to adjust the distance between the support member 5 and the bracket 4 can also be to provide a spring between the support member 5 and the bracket 4 in the vertical direction. In the normal state, the support member 5 and the bracket 4 are in a compressed state. When it is necessary to clamp the cable, pull up the support member 5 to expand the distance between the first conveyor belt 31 and the second conveyor belt 32.
[0037] As Figure 1 shown, as an implementation, the bracket 4 and the mooring cable reel 1 are independent split structures. In this way, the bracket 4 can be installed at other positions on the fire truck, reducing the occupied space and improving the space utilization rate of the fire truck.
[0038] As Figure 1 shown, as an implementation, the drive assembly 3 further includes a drive member 33. The drive member 33 is connected to the bracket 4 and is used to drive the second conveyor belt 32 to move.
[0039] Optionally, the drive member 33 can be a drive motor. The drive member 33 is fixed at one end, and a second roller shaft is sleeved on its motor shaft, which can contact the second conveyor belt 32 to drive the second conveyor belt 32 to move.
[0040] Optionally, the drive assembly 3 further includes a plurality of second roller shafts. The second roller shafts are connected to the bracket 4 to provide support for the second conveyor belt 32.
[0041] As Figure 1 shown, as an implementation, the auxiliary winding and unwinding mechanism further includes at least one set of pressing wheel groups 6. The pressing wheel groups 6 are used to clamp the cable. The pressing wheel groups 6 are fixed on one side of the drive assembly 3. The pressing wheel groups 6 can press the cable, facilitating the movement of the cable. At the same time, it also makes the cable move more smoothly during the release or recovery process, and also plays a guiding role in the recovery and release of the cable.
[0042] Optionally, the pressing wheel group 6 includes two pressing wheels arranged vertically and is fixed on the bracket 4.
[0043] As Figure 1 shown, as an implementation, there are at least two sets of pressing wheel groups 6. The two sets of pressing wheel groups 6 are not at the same height. Since the two sets of pressing wheel groups 6 are not at the same height, in this way, whether during the release or recovery of the cable, the cable moves from a high position to a low position or from a low position to a high position, changing the moment of the cable during movement. It is equivalent to providing a certain resistance to the cable at one end of the cable movement, which can reduce the risk of the cable falling off between the first conveyor belt 31 and the second conveyor belt 32.
[0044] Optionally, the pressing wheel set 6 can be three groups. The group with the highest height is located in the middle, and the other two groups are at the same horizontal height and on both sides of the highest group, improving the stability of the cable during movement.
[0045] As an implementation manner, the auxiliary winding and unwinding device further includes a controller. The controller is fixed on the bracket 4 and is used for communication connection with the control module on the unmanned aerial vehicle 2. It can receive the signal of the unmanned aerial vehicle 2 ascending or descending. When receiving the signal of the unmanned aerial vehicle 2 taking off or landing, the controller can control the movement direction of the driving member 33 to assist in the recovery of the cable. At the same time, during the recovery process, some external forces can also be avoided, improving the winding efficiency.
[0046] In the prior art, when there is no auxiliary winding and unwinding device, during the winding process, the unmanned aerial vehicle 2 descends for a certain distance and the cable is wound for a certain distance. During the descent, if there is a strong wind and the cable is blown straight, at this time, the tethered cable reel 1 is likely to judge that the unmanned aerial vehicle 2 is in a take-off state again, affecting the winding efficiency. By setting a controller on the bracket 4, the problem of low winding efficiency caused by the influence of external wind force during the winding process can be avoided.
[0047] Optionally, the auxiliary winding and unwinding device further includes a guiding member 7. The guiding member 7 has an arc-shaped structure, which can facilitate the cable to be wound around the winch 12.
[0048] As Figure 3 shown, in the second aspect, the embodiment of the present application further provides a fire truck. An auxiliary winding and unwinding mechanism is installed on the fire truck. At the same time, an unmanned aerial vehicle 2 is also installed on the fire truck, and the cable is connected to the unmanned aerial vehicle 2.
[0049] The tethered cable reel 1 is fixed on the chassis of the fire truck, and the auxiliary winding and unwinding mechanism can be fixed at other available space positions on the fire truck, thereby improving the space utilization rate.
[0050] The above are only the embodiments of the present application and are not used to limit the protection scope of the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
[0051] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present application, and all should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.
[0052] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent in such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the said element.
Claims
1. An auxiliary retractable device for a drone, characterized in that: include: A tethered cable reel, used to reel in and out the cable connected to the drone; The auxiliary retractable mechanism comprises a driving component and a detection module, wherein the driving component is used to drive the cable to move, and the detection module is used to detect the torque direction of the cable, and the detection module is communicatively connected with the driving component.
2. The auxiliary retractable device for a drone according to claim 1, characterized in that: The driving assembly includes a first conveyor belt and a second conveyor belt. The first conveyor belt and the second conveyor belt can clamp the cable to drive the cable to move.
3. The auxiliary retractable device for a drone according to claim 2, characterized in that: The auxiliary retracting and releasing mechanism includes a bracket and a supporting member, the second conveyor belt is fixedly connected to the bracket, the first conveyor belt is connected to the supporting member, and the supporting member can move relative to the bracket to adjust the distance between the first conveyor belt and the second conveyor belt.
4. The auxiliary retractable device for a drone according to claim 3, characterized in that: The support piece is used to fit with the bracket, and the bracket is provided with a long hole.
5. The auxiliary retractable device for a drone according to claim 3 or 4, characterized in that: The bracket and the moored cable reel are separate structures independent of each other.
6. The auxiliary retractable device for a drone according to claim 3 or 4, characterized in that: The driving assembly also includes a driving member, which is connected to the bracket and is used to drive the second conveyor belt to move.
7. The auxiliary retracting and releasing device of a drone according to any one of claims 1 to 4, characterized in that: The auxiliary retractable mechanism further comprises at least one set of clamping wheel groups, the clamping wheel groups are used to clamp the cable, and the clamping wheel groups are fixed to one side of the driving assembly.
8. The auxiliary retractable device for a drone according to claim 7, characterized in that: The clamping wheel assemblies are provided with at least two groups, and the two groups of the clamping wheel assemblies are not at the same height.
9. The auxiliary retractable device for a drone according to claim 3 or 4, characterized in that: The auxiliary retractable device also includes a controller, which is fixed on the bracket and is used to communicate with the control module on the drone and receive a signal for the drone to rise or land.
10. A fire truck, characterized in that: The fire truck is equipped with an auxiliary retractable device for the drone according to any one of claims 1 to 9.